FlyingFish said:The DHW (domestic hot water) is cloudy because the combi is directly warming up mains cold water as it passes thru the boiler, on its way to your taps. This causes millions of tiny air bubbles, ie: cloudy water.
Its not contaminated, or anything like that, and will be more apparent if you run the hot tap slowly.
Stick it in a glass and watch it clear, to see for yourself![]()
Mick the plumber